AH1825-WL

AH182/AH183 LOW POWER HALL EFFECT SWITCH Features • • • • • • • • • Micropower operation 2.5V to 5.5V battery operation Offset Canceling Technology Superior temperature stability Extremely Low Switch-Point Drift Insensitive to Physical Stress -40°C to 85°C operating temperature SIP-3L/SC59 package Lead Free Finish/RoHS Compliant for Lead Free products (Note 1) General Description AH182/AH183 is a three-terminal Hall effect sensor device with an output driver, mainly designed for battery–operation, hand-held equipment (such as cellular and cordless phones, and PDA’s) The total operation power is down to 15uW in the 2.75V supply. The south pole of sufficient strength will turn the output on in SIP-3L but the north pole of sufficient strength will turn the output on in SC59 package. The output will be turned off under no magnetic field. While the magnetic flux density (B) is larger than operation point (Bop), the output will be turned on (low), the output is held until B is lower than the release point (Brp), then turned off. The difference between AH182 and AH183 is that the former consumes less power than that of the latter in the Hall sensor operation. Applications • • • Cover detector Speed measurement Home safety Pin Descriptions Name Vdd GND Output P/I/O P/I P O Pin # 1 2 3 Description Power Supply Input Ground Output Pin Ordering Information A H182/AH183 X - X X X CMOS Halleffect Switch Wafer Body Package Lead L : Lead Free (Note 2) Packing Blank : Bulk A : Spread-leg ammo pack for SIP-3L; Tape & Reel for SOT23-3L Blank or P: SIP-3L A~Z : if necessary W: SC59 to specify Note: 1. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see EU Directive Annex Notes 5 and 7. 2. Pad layout as shown on Diodes Inc. suggested pad layout document AP02001, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf. AH182/AH183 Rev. 2 1 of 9 www.diodes.com MARCH 2007 © Diodes Incorporated AH182/AH183 LOW POWER HALL EFFECT SWITCH Pin Assignments (Top View) 3. Output 2. GND 1. Vdd (SC59 package) (SIP-3L package) GND 1. 2. CATHODE 3. REF Block Diagram 1 Vdd Reg./Switch Output 3 Logical Amp Gnd Offset Cancelling Hall Plate 2 AH182/AH183 Rev. 2 2 of 9 www.diodes.com MARCH 2007 © Diodes Incorporated AH182/AH183 LOW POWER HALL EFFECT SWITCH Typical Circuit 2.5~5.5V Vdd AH182/ AH183 Gnd Output RL Digital Output Absolute Maximum Ratings (Ta = 25°C) Characteristics Supply Voltage Magnetic Flux Density Operating Temperature Range Storage Temperature Range Package Power Dissipation Maximum Junction Temp Output current PD Symbol Vdd B Ta Ts SIP-3L SC59 Tjc Io Values 7 Unlimited -40 to +85 -65 to +150 550 230 150 10 Unit V °C °C mW mW °C mA Recommended Operating Conditions ( Ta = 25°C ) Paramter Supply Voltage Symbol Vdd Conditions Operating Rating 2.5~5.5 Unit V AH182/AH183 Rev. 2 3 of 9 www.diodes.com MARCH 2007 © Diodes Incorporated AH182/AH183 LOW POWER HALL EFFECT SWITCH Electrical Characteristics Characteristic Output On Voltage Output Leakage Current Symbol Vout Ioff Idd(en) Idd(dis) Idd(avg) Idd(avg) Tawake Tperiod D.C. ( Ta = +25°C, Vdd = 3V ) Conditions Iout = 1mA Vout = 5.5V, B < Brp Chip enable Chip disable AH182: average supply current AH183: average supply current AH182 AH183 AH182 AH183 Min - Typ 0.1